Image Compressor

Compress JPG, PNG, and WebP images client-side with adjustable quality and instant file size savings.

Privacy Notice: Local Browser Processing: Image decoding and compression run 100% locally in your browser memory via HTML5 Canvas. Your images are never uploaded to any remote server or stored in the cloud.

About Image Compressor

Shrink image file sizes without sacrificing visual fidelity. Zoviva Image Compressor uses modern HTML5 Canvas encoding to recompress photos and graphics right in your browser. Compare before and after file sizes, preview quality side-by-side, and download optimized assets for faster website load times.

How to Use Image Compressor

  1. 1. Upload your image

    Select or drag & drop a JPG, PNG, or WebP picture from your device.

  2. 2. Adjust quality slider

    Slide the compression quality level (75% to 85% delivers major file size savings with high visual clarity).

  3. 3. Compare size reduction

    Inspect original vs. compressed file size and percentage saved in real time.

  4. 4. Download compressed image

    Click Download Compressed Image to save your optimized file.

Common Use Cases

Website Speed Optimization

Reduce image payloads to achieve faster Core Web Vitals and higher Google PageSpeed scores.

Email Newsletter Attachments

Compress heavy camera photos to stay well under email attachment size limits.

Portal & Job Application Uploads

Shrink scanned documents and passport photos to satisfy strict online portal upload quotas (e.g. under 500 KB).

Pro Tips for Best Results

  • • A quality setting between 78% and 82% offers the optimal sweet spot between crisp visual detail and low byte weight.
  • • Converting heavy PNG photos to WebP format often cuts file size by more than 70% with virtually zero perceptible loss.

Frequently Asked Questions

Are my private photos uploaded to a server?

No. Compression runs 100% locally inside your browser memory using the HTML5 Canvas API. Your photos never leave your device.

What quality setting is recommended?

A setting between 75% and 82% delivers the best balance, reducing file size by 60-80% while remaining visually indistinguishable from the original.

Which image formats are supported?

You can upload and compress JPG, JPEG, PNG, and WebP images.

Does it support animated GIFs?

The compressor is designed for static raster images (JPG, PNG, WebP). GIFs will be compressed to their first frame.